That does make sense, I have a 24v system with a powerlab 8..Was going to go with the dinogy, 2) 5s packs and the 1) 2s pack..all same MAH but they have to be same cell count to run parallel correct?? I already have the EVF 2 12s fan and motor unit, but have 2 electras, 1 motor fan unit...Didnt know if I was going to unload the 12s and just put 10's in both..But seems like I might keep the 12s..